Two-step dust collector



FIG. 1 is a perspective view of a two-step dust collector showing my new design;

FIG. 2 is a front side elevational view thereof;

FIG. 3 is a rear plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right plan view thereof;

FIG. 6 is a top side elevational view thereof; and,

FIG. 7 is a bottom side elevational view thereof. 

The ornamental design for two-step dust collector, as shown and described. 